It's important that torsion be ruled out with certainty. Your child's case is complicated because of the past inguinal hernia and hydrocele. Also, the blood in his urine needs to be worked up until its cause is found. The sore throat could be related. Basically, no one can diagnosie epididymits over the internet. I would be concerned about getting to the problem of these serious complaints, especially if you have substandard medical care in your area, as even standard care is not great for these kinds of problems.